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Vol. 2A 3-361
INSTRUCTION SET REFERENCE, A-M
FPREM—Partial Remainder
FPU Flags Affected
C0 Set to bit 2 (Q2) of the quotient.
C1 Set to 0 if stack underflow occurred; otherwise, set to least
significant bit of quotient (Q0).
C2 Set to 0 if reduction complete; set to 1 if incomplete.
C3 Set to bit 1 (Q1) of the quotient.
Floating-Point Exceptions
#IS Stack underflow occurred.
#IA Source operand is an SNaN value, modulus is 0, dividend is ∞, or
unsupported format.
#D Source operand is a denormal value.
#U Result is too small for destination format.
Protected Mode Exceptions
#NM CR0.EM[bit 2] or CR0.TS[bit 3] = 1.
#MF If there is a pending x87 FPU exception.
#UD If the LOCK prefix is used.
Real-Address Mode Exceptions
Same exceptions as in protected mode.
Virtual-8086 Mode Exceptions
Same exceptions as in protected mode.
Compatibility Mode Exceptions
Same exceptions as in protected mode.
64-Bit Mode Exceptions
Same exceptions as in protected mode.